{"product_id":"u-s-chemical-plastics-duraglas-fiberglass-filled-body-filler-1-gallon-reinforced-for-rust-outs-and-large-hole-repairs","title":"U.S. Chemical \u0026 Plastics Duraglas Fiberglass Filled Body Filler 1 Gallon — reinforced, for rust-outs and large hole repairs","description":"\u003cp\u003e\u003cstrong\u003eDuraglas Fiberglass Filled Filler is a one-gallon, fiberglass-reinforced body filler designed to restore rusted panels, holes and cracks on metal and fiberglass surfaces with high structural strength.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDuraglas from U.S. Chemical \u0026amp; Plastics is the original short-strand fiberglass body filler engineered for demanding automotive and marine repair work. Formulated with chopped fiberglass fibers and a supplied cream hardener, it offers a tougher, more durable repair than conventional polyester putties. Supplied as a blue-green paste, this product bonds to metal, aluminum, fiberglass, wood, masonry and concrete for patching, filling and rebuilding damaged areas before finishing.\u003c\/p\u003e\n\n\u003ch3\u003eHow does Duraglas handle rust-outs and large holes?\u003c\/h3\u003e\n\u003cp\u003eDuraglas contains short-strand fiberglass that adds tensile strength across damaged zones, making it suitable for filling rust-throughs and larger voids that would defeat standard body fillers. For extensive damage it integrates with fiberglass cloth to create a composite repair that resists collapse and flexing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse with fiberglass cloth for structural bridging of large openings\u003c\/li\u003e\n  \u003cli\u003eReinforced paste prevents sinking in deep fills\u003c\/li\u003e\n  \u003cli\u003eWorks over weld areas and bond seams to rebuild metal contours\u003c\/li\u003e\n  \u003cli\u003eWaterproof and rustproof properties improve longevity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat surfaces can I apply Duraglas to and how do I prepare them?\u003c\/h3\u003e\n\u003cp\u003eDuraglas adheres to a wide range of substrates including steel, aluminum, fiberglass, wood, masonry and concrete when surfaces are properly cleaned and abraded. Remove loose rust, old paint and contaminants, then sand to a clean, roughened profile for best mechanical adhesion.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClean oil, grease and dirt before application\u003c\/li\u003e\n  \u003cli\u003eSand or grind to bare metal or roughen gelcoat on fiberglass\u003c\/li\u003e\n  \u003cli\u003ePrime bare ferrous metal or aluminum if recommended for top coat compatibility\u003c\/li\u003e\n  \u003cli\u003eApply at recommended 2% hardener mix by weight (approx. 50:1 ratio)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I mix, apply and finish Duraglas for a lasting repair?\u003c\/h3\u003e\n\u003cp\u003eMeasure the supplied cream hardener at about 2% by weight (roughly a 50:1 ratio) and thoroughly blend into the filler until uniform. Shape the filler while it’s still workable, allow it to cure, then sand to shape; finish with All-Metal or a compatible finishing putty before final priming and paint.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMix at 2% hardener by weight; small test batches recommended\u003c\/li\u003e\n  \u003cli\u003ePack into cavities or spread over cloth for reinforced patches\u003c\/li\u003e\n  \u003cli\u003eCure fully before sanding and profiling\u003c\/li\u003e\n  \u003cli\u003eTop coat with All-Metal or finishing putty for a waterproof finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill Duraglas withstand marine or exterior exposure?\u003c\/h3\u003e\n\u003cp\u003eDuraglas is formulated to be waterproof and rustproof once cured, making it appropriate for exterior and marine applications when properly sealed and top-coated. Use in conjunction with recommended top coats and surface preparation to maintain durability in wet or corrosive environments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFiberglass reinforcement improves resistance to moisture and flex\u003c\/li\u003e\n  \u003cli\u003eRecommended top coat seals the repair for marine use\u003c\/li\u003e\n  \u003cli\u003eSuitable for hull repairs, transom repairs and exterior panels\u003c\/li\u003e\n  \u003cli\u003eNot a substitute for structural laminates — use cloth and proper layup when needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this product for? Duraglas is aimed at automotive restorers, collision repair technicians, boat owners and DIYers who need a heavy-duty filler that rebuilds and reinforces damaged panels. If you require a stronger, fiberglass-filled alternative to standard polyester putties for rust repair, weld areas, holes or fiberglass seam work, Duraglas provides a reliable, long-lasting solution that integrates with fiberglass cloth and accepts finishing putties and top coats.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the correct mix ratio for Duraglas?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Mix Duraglas with the supplied cream hardener at about 2% by weight (roughly a 50:1 ratio).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can Duraglas be used on fiberglass hulls?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—Duraglas bonds to fiberglass and, when used with fiberglass cloth and a proper top coat, suits hull and transom repairs.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"U.S. Chemical \u0026 Plastics","offers":[{"title":"Default Title","offer_id":48080946725022,"sku":"B002I0MOY0","price":94.84,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/uscp-duraglas-front-gallon-container.jpg?v=1785793077","url":"https:\/\/northtrailauto.ca\/products\/u-s-chemical-plastics-duraglas-fiberglass-filled-body-filler-1-gallon-reinforced-for-rust-outs-and-large-hole-repairs","provider":"North Trail Auto","version":"1.0","type":"link"}